president obama urges regular screenings like mammograms as a key to early detection. >>> president obama and mitt romney are preparing for their debate. governor o'malley is challenging another -- >> a mcdonald spokesperson calls the offer nice, but rejected the invitation saying we have our own gubernatorial version of a push-up contest. spoiler alert, virginia wins. both states unemployment rates rose slightly in july. virginia jumped to 9.5%, maryland 7%. >>> let's take a look at some of the stories we are following on news 4 this afternoon. coming up on news 4 at 4:00, what will the first lady get the president for their 20th anniversary. we'll find out. we'll have a sneak peek at mrs. oba obama's trip. >> what one mom does while her baby naps? at 5:00, a mammogram finding the smallest tumors ever detected allowing women to get treatment earlier than ever. >> how to get in on what's sweeping the nation. >> tom has it. >> there's still seats open on the bandwagon. >> what a wonderful thing. i'm following baseball all my life. this is so exciting. the rain threatened the game last nigh